Home / 18,936.12-28,395.41-9,064.56

Finding the Fourth Proportional to 18,936.12, 28,395.41 and 9,064.56

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Solution

The fourth proportional to 18,936.12, 28,395.41 and 9,064.56 is: 13,592.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,936.12 : 28,395.41 = 9,064.56 : x
  2. Step 2: Convert to fraction form
    18,936.12/28,395.41 = 9,064.56/x
  3. Step 3: Cross multiply
    18,936.12x = 28,395.41 × 9,064.56
  4. Step 4: Simplify right side
    18,936.12x = 257,391,852.35
  5. Step 5: Solve for x
    x = 257,391,852.35/18,936.12
  6. Step 6: Final answer
    x = 13,592.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.